Improvement in water-elevators



linied iatea MATTHEW D. GRAY, OF TERRE HAUTE, INDIANA.

Letters Patent No, 98,952, dated January 18, 1870.

IMPROVEMENT IN WATER-ELEVATQRS.

The Schedule referredto in these Letters Patent and making pax-1: cf the same.

To all whom it may concern Beit known that I, MATTHEW D. GRAY, of Terre Haute, in the county of Vigo, and State of Indiana, have invented a new and improved nlodeof Elevating Water from Wells; and I do hereby declare that the following is a full and exactv description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The design is calculated for the elevating of water from wells by crank, without turning thesamc backwardto let the bucket down in the well,

Upon the flame-work, marked A A in the drawings, are niarked the bases U D, Figures l and 2, which support the journals of a windla-ss, E, figs. 1 and 2, common wit-h other arrangements generally used' for that purpose. A

Instead of the crank alone, a disk, F, figs. 1 and 2, isirmly keyedvto the shatt,`which is dished out, so that only a small portion ot' its.`snrface touches the tlat side ofthe ratchet-wheel G, Figures 1, 2, and 3.

The other face of the ratchet-wheel is provided with two circular wedges C C, which nreet similar wedges' 'c c, Figure 4, cast solid with the crank J, figs. 1, 2,'

and 4.

1f, now, the crank is turned while the ratchet-wheel is stationary, it would, from the nature ofthe curves, slip on the shaft laterally, which is prevented by the nut N, tig. 2, screwed firmly against a shoulder on the shaft. When the crank has reached this-n1t N, the ratchet-wheel G is lirmly wedged between the disk F, figs. 1 and 2, and the friction of the disk against the face of the ratchet-wheel will be suicient to wind up the bucket full of water.

The pawl M, tig. 1, always in position, prevents the and rests with one end on the heel of the cam-(l, with the other on the crank I, and is made to have sutIicient strength, and cause so much pressure in these parts, as to stop the descent of a full bucket, at any place. Then a slight pressure backward on the crank, 4

snthcient to counterbalance the spring S,i is sufficient to diminish the-friction of the disk against the ratchetwheel, so that the weight of the bucket will cause its descent without any other motion of thecrank.

In order to prevent the too sudden descent of the bucket, by the total absence of friction on' the disk,

"the heels m u of the crank, tig. 4, have small lids cast, which serve as supports for some coil-springs which press against the corners of the ratchet-wheel, even when the pieces of the cams are out ot contact, in securing at that time an easy descent ofthe bucket, entirely under the control of the operator.

A short tlat chain, :c 1, tig. l, is used on the end of. the rope, and, ill order to insure the propel' winding 1 up ot' the saine on the windlass, a rod, v.f1:iig. 1, is

worked in the trame A A, tig. 1, carryinga loose pnll-ley, l", which serves'as a guide, and conducts the rope 1. always in such position as to bring the knobs on the bucket in contact with the dipping-rod ofthe concern.

I claim- 1. The crank J, havingr curved armsA m and n, as

described, in combination with ratchet-wlu-el G, disk l", and spring b', all arrai'iged to operate substantially in the manner and for the purpose herein set forth.

2. 'The within-described arrangement ofdevices for 

